Simulation Research of Vaporization and Pressure Variation in a Cryogenic Propellant Tank at the Launch Site

Chen, Liang; Liang, Gengchiau

doi:10.1007/s12217-013-9340-2

Cited by 15 publications

(3 citation statements)

References 8 publications

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“…From the results of the previous literature mentioned above, the most important work in numerical analysis to achieve heat leak minimization due to heat penetration of the cryogenic storage tank is how to model the interfacial heat and mass transfer phenomenon at the free surface. Therefore, numerous recent studies [2,[17][18][19][20] have actively investigated the relationship between buoyancy-driven turbulent flow and boil-off loss due to heat leaks using a CFD model that considers heat and mass transfer on the free surface of a lique-fied hydrogen storage tank. Numerical models utilizing the CFD technique have been widely adopted for describing the vapor-liquid interface phase change at the free surface.…”

Section: Introductionmentioning

confidence: 99%

“…Numerical models utilizing the CFD technique have been widely adopted for describing the vapor-liquid interface phase change at the free surface. Recently, these include Volume of Fluid (VOF) [2,18,19,21,22] models and a sharp interface model based on the Schrage molecular mass transfer model [17,23]. Similarly, a CFD model based on VOF has been used to investigate the effects of variations in geometric shapes such as the aspect ratio of a liquefied hydrogen storage tank [21] and changes in the position of baffles to suppress sloshing on the boil-off rate and buoyancy-driven turbulent flow in a tank [20].…”

Section: Introductionmentioning

confidence: 99%

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CFD Thermo-Hydraulic Evaluation of a Liquid Hydrogen Storage Tank with Different Insulation Thickness in a Small-Scale Hydrogen Liquefier

Jeong,

Lee,

Moon

2023

Fluids

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Accurate evaluation of thermo-fluid dynamic characteristics in tanks is critically important for designing liquid hydrogen tanks for small-scale hydrogen liquefiers to minimize heat leakage into the liquid and ullage. Due to the high costs, most future liquid hydrogen storage tank designs will have to rely on predictive computational models for minimizing pressurization and heat leakage. Therefore, in this study, to improve the storage efficiency of a small-scale hydrogen liquefier, a three-dimensional CFD model that can predict the boil-off rate and the thermo-fluid characteristics due to heat penetration has been developed. The prediction performance and accuracy of the CFD model was validated based on comparisons between its results and previous experimental data, and a good agreement was obtained. To evaluate the insulation performance of polyurethane foam with three different insulation thicknesses, the pressure changes and thermo-fluid characteristics in a partially liquid hydrogen tank, subject to fixed ambient temperature and wind velocity, were investigated numerically. It was confirmed that the numerical simulation results well describe not only the temporal variations in the thermal gradient due to coupling between the buoyance and convection, but also the buoyancy-driven turbulent flow characteristics inside liquid hydrogen storage tanks with different insulation thicknesses. In the future, the numerical model developed in this study will be used for optimizing the insulation systems of storage tanks for small-scale hydrogen liquefiers, which is a cost-effective and highly efficient approach.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

CFD Thermo-Hydraulic Evaluation of a Liquid Hydrogen Storage Tank with Different Insulation Thickness in a Small-Scale Hydrogen Liquefier

Jeong,

Lee,

Moon

2023

Fluids

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“…Storage tank is one of the basic components for spacecraft, in which the behavior of liquid is mostly responsible for the safety, stability, fuel supply, and so on. Correspondingly, researchers pay close attentions to the shape of free surface (Kulev and Dreyer 2010;Park et al 2015;Zhou et al 2016;Zwicke et al 2017), the pressure control inside tank (Lopez et al 2008; Barsi and Kassemi 2013;Chen and Liang 2013;Kassemi and Kartuzova 2016), the liquid sloshing (Zhou and Huang 2015;Deng and Yue 2017), and the measurement of the residual liquid. Among these aspects, the dynamic evolution of the free surface of the liquid inside tank is the key topic, which is principally determined by the surface tension force in microgravity environment.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Behaviors of Liquid in Partially Filled Tank in Short-term Microgravity

Lin

Zhao

et al. 2018

Microgravity Sci. Technol.

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The oscillation of liquid/gas free surface in a partially filled storage tank caused by an abrupt drop of gravity level is of critical importance for the fluids management in space. In present study we investigate the dynamic behavior of free surface in tank models (tubes) using water as the working medium utilizing the Drop Tower Beijing, which can provide a 3.6s short-term microgravity condition. Meanwhile, the corresponding numerical simulation using volume of fluids (VOF) methods was carried out. It is shown that the dynamic behavior of free surface, which belongs to the typical phenomenon of capillary flow, is affected by the properties of working medium and the geometry and surface properties of the storage tank (especially the contact angle) jointly. The numerical simulation could capture the major characteristic oscillation frequency of free surface revealed by experiment. The oscillation frequency of free surface increases with the increasing air fraction and remains nearly constant at large air fraction. For the same air fraction, the oscillation frequency significantly increases with the decreasing tank diameter. Keywords Storage tank • Dynamic behavior • Oscillation frequency • Microgravity Ji-Cheng LI performed the numerical simulation and experimental data processing. Hai LIN carried out the experiment.

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Dynamic Behavior in a Storage Tank in Reduced Gravity Using Dynamic Contact Angle Method

Lin

et al. 2020

Microgravity Sci. Technol.

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Simulation Research of Vaporization and Pressure Variation in a Cryogenic Propellant Tank at the Launch Site

Cited by 15 publications

References 8 publications

CFD Thermo-Hydraulic Evaluation of a Liquid Hydrogen Storage Tank with Different Insulation Thickness in a Small-Scale Hydrogen Liquefier

CFD Thermo-Hydraulic Evaluation of a Liquid Hydrogen Storage Tank with Different Insulation Thickness in a Small-Scale Hydrogen Liquefier

Dynamic Behaviors of Liquid in Partially Filled Tank in Short-term Microgravity

Dynamic Behavior in a Storage Tank in Reduced Gravity Using Dynamic Contact Angle Method

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